<template>
<div class="login_container">
    <div class="login_box">
        <!-- 头像区域 -->
        <div class="avatar_box">
            <img src="../assets/logo.png" />
        </div>

        <!-- 登录表单区域 -->
        <el-form ref="loginFormRef" :model="loginForm" :rules="loginFormRules" label-width="0px" class="login_form">
            <el-form-item prop="username">
                <el-input v-model="loginForm.username" prefix-icon="iconfont icon-user"></el-input>
            </el-form-item>

            <el-form-item prop="password">
                <el-input v-model="loginForm.password" prefix-icon="iconfont icon-3702mima" type="password"></el-input>
            </el-form-item>

            <el-form-item class="btns">
                <el-button type="primary" @click="login">登录</el-button>
                <el-button type="info" @click="resetLoginForm">重置</el-button>
            </el-form-item>

        </el-form>
    </div>
</div>
</template>

<script>
export default {
  data () {
    return {
      loginForm: {
        username: 'admin',
        password: '123456'
      },

      loginFormRules: {
        username: [{
          required: true,
          message: '请输入登录名称',
          trigger: 'blur'
        },
        {
          min: 3,
          max: 10,
          message: '长度在 3 到 10 个字符',
          trigger: 'blur'
        }
        ],
        password: [{
          required: true,
          message: '请输入登录密码',
          trigger: 'blur'
        },
        {
          min: 6,
          max: 15,
          message: '长度在 6 到 15 个字符',
          trigger: 'blur'
        }
        ]
      }
    }
  },

  methods: {
    resetLoginForm () {
      this.$refs.loginFormRef.resetFields()
    },
    login () {
      this.$refs.loginFormRef.validate(async valid => {
        // console.log(valid)

        if (!valid) return

        const { data: res } = await this.$http.post('login', this.loginForm)
        if (res.meta.status !== 200) return this.$message.error('登录失败')

        this.$message.success('登录成功')

        window.sessionStorage.setItem('token', res.data.token)

        this.$router.push('/home')
      })
    }

  }
}
</script>

<style lang="less" scoped>
.login_container {
    background-color: #2b4b5b;
    height: 100%;
}

.login_box {
    width: 450px;
    height: 300px;
    background-color: white;
    border-radius: 3px;
    position: absolute;
    left: 50%;
    right: 50%;
    transform: translate(-60%, 100%);

    .avatar_box {
        height: 130px;
        width: 130px;
        border: 1px solid #eee;
        border-radius: 50%;
        padding: 10px;
        box-shadow: 0 0 10px #add;
        position: absolute;
        left: 50%;
        transform: translate(-50%, -50%);
        background-color: white;

        img {
            width: 100%;
            height: 100%;
            border-radius: 50%;
            background-color: #eee;
        }
    }
}

.login_form {
    position: absolute;
    bottom: 0;
    width: 100%;
    padding: 0 20px;
    box-sizing: border-box;

}

.btns {
    display: flex;
    justify-content: flex-end;
}
</style>
